I have a SIP trunk between CUCM 5.1 and a CME site over MPLS. I have a priority queue setup for traffic that is marked as EF. When I watch traffice between the CUCM and CME I see the conneciton for the SIP trunk but there is no markings for the VOIP call. Because the traffic is not being marked the calls are not using QOS. If I watch a call here in my local office I see the traffic marked between 2 phones. How can I mark the traffic from my call manager to the CME as EF? Will it hurt of help if I add something like mls qos trust to the call manager ports on the switch?